Abstract
We study a weighted ESPRIT method for estimating the direction cosine (of 2-D angles of incoming wave arrivals) based on uniform circular arrays. An optimum weighting matrix is found and shown to satisfy a generalized centro-Hermitian relationship. As a result, an optimally weighted ESPRIT method is formulated. For a single low (altitude) angle source, the method provides more than 3 dB reduction in estimation variance.
| Original language | English |
|---|---|
| Pages (from-to) | 272-281 |
| Number of pages | 10 |
| Journal | Computers & electrical engineering |
| Volume | 31 |
| Issue number | 4-5 |
| DOIs | |
| Publication status | Published - Jun 2005 |
Keywords
- Mathematical models
- Mobile communication systems
- Signal processing
- Wireless communication systems